.tang_book {
    background-color: rgb(223, 218, 199);
}

.content {
    line-height: 2rem;
}

.tang_top {
    width: 100%;
    height: 1.5rem;
    display: flex;
    justify-content: space-between;
    position: sticky;
    top: 0;
    background-color: #fff;
    /* display: none; */
}


.tang_top img {
    width: 0.8rem;
    height: 0.8rem;
}

.fanhui {
    font-size: 0.8rem;
    font-weight: 900;
}

.tang_top_right {
    width: 5rem;
    display: flex;
    justify-content: space-between;
}

.tang_asd{
    width: 80%;
    height: 80%;
    background-color: pink;
}